Apparatus for perforating jewelry elements



June 17, 1930. R. ANDERSON APPARATUS FOR PERFORATING JEwELhY ELEMENTS 2Sheet-Sheet 1 Filed Odt. a, 1928 V 'INVENTOR Rafieflindersm.

ATTQRNEY June 17, 1930. R. ANDEEFIQSON 9 1,764,924

APPARATUS FOR PERFORATING JEWELRY ELEMENTS Filed 001:. 6, 1928 2Sheets-Sheet 2 ml-qd7 14 9 1??? fi qiy x J 1 o o o o 0 1 k v 4% 4 46 1 d6 i I INVENTOR MerZArwkrsm Patented June 17, 1930 ome STATES onnerANDERSON, or NEW YORK, N. Y.

erreum s FOB ,PEBFORATING JEWELRY ELEMENTS Application fi1ed0etober 6.1925. Serial No. 310,744.

.My' invention relates to apparatus usedin perforating the box-likelinks of jewelry chains to make them ready for the reception of preciousstones, and the same has for itsiobject more particularly to provide asimple, efiicient and reliable die device to he used in connection witha punch press for the purposes aforesaid.

Further, said invention has for its object to provide a die block withvan adjustable die plate (the latter having a series of apertures ofvarious diameters) and with stop and positioning elements for thepurpose of locating the jewelry element with respect to the punch and.die axis in order that a hole may he punched at the place desired.

Further, said invention has for its object to provide means whereby thestop and positioning elements may bereadily adjusted and locked in thepositions to which they have been adjusted, for such a period of time asmay be desired.

Other objects will in part be obvious and in part be pointed outhereinafter. i

To the attainment of the aforesaid objects and ends, my inventionconsists in the novel details of construction and in the com,

hination, connection and arrangement of punched.

parts, hereinafter more fully described .and then pointed out in theclaims.

In the accompanying drawings, showing illustrative embodiments of theinvention.

Fig. 1 is an end elevationof a table with a punch press and my inventionlocated thereon.

Fig. 2 is a perspective viewiof my inven- .tionj. 1 l

Fig. 3 is a jewelry element in hole punched. Fig. 4c is a plan of myinvention with a jewelry element in position to have one of the marginalor corner holes punched.

Fig. 5 is an inverted perspective view of myinvention, Fig. 6 is anenlarged perspective view of one of the jewelry elements before beingFig. 7 is a perspective View of the jewelry element after it has b enplan of my invention with a position. to have acentei" 17 projectingfrom one end wall.

finge'rs 17 are adapted to be passed through In the drawings in which(like numerals of reference indicate like parts in all of the figures,.lrepresents a die block which may be provided with suitable positioninglugs 2 on its under side and with a bolt or screw receiving hole 8. Bypassing a bolt-or screw through the hole 3 to connect with the tablethedie block may be mounted fixedly on the table 12. The table alsocarries the punch press 13.

The die block 1 is provided, on its upper face, with a groove 4 for.thewreception of :a die plate 6. The die plate 6 comprises an elongatedstrip having a series of apertures 7, varying size from a minimumdiameter to a maximum diameter.

In order to hold the die plate in position with any of the aperturesdesired in an alignment with the axis of th pl llch proper 14, I provideone or more screws 8 as shown.

For the purpose of positioning the jewelry element 16 with respect tothe die aperture that is to he used, and for the purpose of acting as aback-stop against which the attendant may hold the said jewelry elementwhile operating the punch, two (adjustable stops and positioning screws9 are provided, the same being mounted in lugs 10 which project upwardlyfrom the die block 1. Set screws 11 are provided by means of which thescrews 9 may he held securely in whatever position they may have beenplaced,

The punch press may be operated :by a foot lever or treadle 15 or in anyotherapproved way, hut under controlfof the attendant. i j

The jewelry elements 16 that are to "be punched are usually composedofbox-like bodies openat the back and having fingers These finger holes1-8 in the opposite end wall of the next jewelry element of the chainand serve to connect the adjacent elem-ents' flexibly together.

The number of holes face of an element 16 and the position and size ofsuch holes will, of course, depend p the number, si e and osition of t ejewels to b moun ed t erein. s I othe to bepunched the Y words the samewill depend upon the size of the jewels and the relative arrangementthereof, or design to be produced. Frequently there will be a centralhole 19 for a large jewel and marginal holes for smaller jewels.Sometimes, however, there will be but a single large hole used. 7

In employing my invention the die block 1 is mounted on the table 12 ina position to locate the die plate passage 5 directly beneath the punch.The proper aperture 7 is brought into position to register with the dieproper and the plate is'secured by the screw 8. A punch 14 of propersize to cooperate with the aperture 7 is fastened in the chuck of thepress. 7

One of the jewelry elements 16 is then placed on the die plate in suchposition as to enable the hole to be punched properly and the screws 9are adjusted to the position "of the jewelry element, after which theyare secured by the set screws and constitute stop and positioningmeansfor succeeding jewelry elements. 7

The jewelry elements to be punched, with the hole of such size andposition as has been determined and to which the parts have been thusadjusted, are successively placed in position on the die block, punchedand re moved therefrom by the operator.

If it is desired to punch the smaller or marginal holes the die plate isagain adjusted to bring the desired smaller apertures in position, acorresponding die is placed in the punch chuck and the screws 9 areagain adjusted to the element which has been placed in position. Afteradjusting the screws 9 they are secured by the set screws and thenbecome positioning back stops as before.

By locating the axes of the screws 9 at right angles to one another andat angles of forty-five'degrees to the die plate, a convenient back stopis provided against which the attendant may, with ease,'hold thejewaperture may be located beneath the punch of said press, means tosecure said plate in position on said block, and a pair of positioningmembers mounted on said block in cooperative relation to said die platefor the purposes specified and means for independently ad usting saidpositioning members with respect to one another and to said die plate.

2. In apparatus of the class described, the combination with a punchpress having a punch, of a die block, means rigidly to locate said blockwith respect to said press, a die plate having a plurality of aperturesad-' justably mounted on said block whereby any aperture may be locatedbeneath the punch of said press, means to secure said plate in positionon said block, a pair of lugs projecting upwardly from the face of saiddie block, a positioning member mounted in I each lug, and means tosecure said positionlng members in any position to which they may have.been adjusted substantially as specified. r

3. In apparatus of the class described, the combination with a punchpress having a punch, of a die block, means rigidly to locate said blockwith respect to said press, a die plate having a plurality of aperturesadjustably mounted on said block whereby any aperture may be locatedbeneath the punch of said press, means to secure said plate in positionon said block, a pair of lugs projecting upwardly from the face of saiddie block, a positioning member mounted in each lug, and means to securesaid positioning members in any position to which they may have beenadjusted, said positioning members converging toward each other andtoward the axis of the die plate aperture being used.

4. In apparatus of the class described, a die block, a die plate havingapertures of various sizes, said die block having a groove to receivesaid die plate, means to hold said die plate adjustably in said groove,whereby any of its apertures may be brought to a defined position withrespect to said block, a pair of lugs projecting upwardly from the faceof said block, a positioning screw mounted iii each lug, a set screw oneach lug to hold the positioning screws in their adjusted positions,said positioning screws converging towardeach other and toward saiddefined position substantially as shown and for the purposes described.

5. In apparatus of the class described the combination of a punch presshaving a punch with a die block, means for rigidly securing said dieblock in position, a die plate having a series of apertures thereinadjustably mounted on said block whereby to permit of any of saidapertures to be located in position to register with said punch, meansfor securing said plate in position upon said block, supporting means onsaid block and a plurality of separate positioning members ,adjustablymounted in said supporting means and adapted to engage with two adjacentsides 'of a work piece. 7 v

6. In apparatus of the class described, the

combination of a punch press having a punch with a die block, means forrigidly securing said die block in position, a die plate having a seriesof apertures therein adjustably' mounted on said block whereby to permitof any of said apertures to be located in position to register with saidpunch, means for securing said plate in position upon saidblook, and aplurality of separate individually adjustable positioning membersmounted'on said block and adapted to engage a work piece in position atright angles to each other.

In apparatus of the class described, the combination of a punch presshaving a punch with'a die block,-means for rigidly securing said dieblock in position, a die plate having a series of apertures thereinadjustably mounted on said'block whereby to permit of any of saidapertures to be located in position to register with said punch, meansfor securing said plate in position upon said block, and a plurality ofseparate positioning members adjustably mounted at right angles to eachother and adapted to engage with two closely contiguous side portlons ofa work piece.

8. In apparatus of the class described, the combination of a punch presshaving a punch with a die block, means for rigidly securing said dieblock in position, a die plate having a series of apertures thereinadjustably mounted on said block whereby to permit of any of saidapertures to be located in position to register with said punch, meansfor securingsaid plate in position upon said block, a plurality ofpositioning members angularly arranged with V respect'to each other andadapted to engage with two contiguous angular sides of a work piece, andmeans separately to adjust said positioning members toward and from eachother and the die plate.

Signed at the city pf New York, borough of Manhattan, in the county andState of New York, this 10th day of September, one

thousand nine hundred and twentyeight.

ROBERT ANDERSON.

